Mineral makeup is thing to wear this summer if you're looking for an all natural makeup with safe and effective sunscreen. The fact is that two of main ingredients in mineral makeup are natural sunscreens that not only reflect light but protect your skin from harmful and cancer causing UV rays.
The ingredients, Titanium dioxide and Zinc oxide, both natural and very safe minerals are found in almost every sunscreen on market. Titanium dioxide is so effective because of it's ability to reflect light. It has one of highest refractive indexes in world at (n=2.4). In fact this refractive index is surpassed by only one other mineral in world-diamond.
Titanium dioxide is also inorganic so it keeps skin from gathering moisture that could feed bacteria and cause or worsen acne. This is great news for acne sufferers looking for an effective makeup and sunscreen product that won't worsen their condition.
The second natural sunscreen mineral in mineral makeup is zinc oxide. Zinc oxide was not chosen as an ingredient because of it's sunscreen qualities however, it was chosen for it's vast array of colors and indeed is elimental in providing a large array of colors for makeup artists to work with when formulating different foundaitons, blushes, and eyeshadows.
Zinc oxide is a natural UV blocker just as titanium dioxide is. It also has same very water resistant quality of titanium dioxide and wards of bacteria. Zinc oxide is as widely used in sunscreen lotions as titanium dioxide. These two elements together give most brands of mineral makeup an spf of 15.